JP4089567B2 - Heat exchanger module for cooling - Google Patents

Description

  The present invention relates to a cooling heat exchanger module comprising a cooling heat exchanger for a vapor compression refrigerator such as a condenser and a subcooler, and a heat exchanger for cooling a fluid different from a refrigerant such as an oil cooler. It is effective when applied to a cooling device for use.

  When a plurality of types of heat exchangers are arranged in series with respect to the cooling air flow, the size of the portion of the cooling heat exchanger module that is parallel to the cooling air flow direction becomes large.

  For this reason, conventionally, a plurality of types of heat exchangers are arranged in a direction orthogonal to the cooling air flow, and the plurality of types of heat exchangers are integrated (for example, see Patent Document 1 or 2).

  In addition, since a cooling heat exchanger module such as a condenser is usually mounted on the front end of a vehicle in a vehicle, if a plurality of types of heat exchangers are arranged in a direction perpendicular to the cooling air flow, the cooling heat exchange The dimension of the part parallel to the vehicle front-rear direction of the instrument module can be reduced.

  Also, if the size of the part of the cooling heat exchanger module that is parallel to the longitudinal direction of the vehicle is reduced, an impact absorbing portion such as a crushable zone that absorbs the impact force from the front of the vehicle is easily deformed by being deformed to the front end of the vehicle. Therefore, it is possible to protect passengers from collision accidents while protecting pedestrians.

Incidentally, the invention described in Patent Document 1 is a cooling in which a radiator for cooling an internal combustion engine (engine) and a radiator for cooling an electric motor for traveling and an inverter circuit that drives the electric motor are integrated. The invention described in Patent Document 2 is a cooling heat exchanger module in which a condenser for an air conditioner and an oil cooler are integrated.
JP 2001-174168 A US Pat. No. 6,394,176

  By the way, as a high-pressure side device used in a vapor compression refrigerator, there are a modulator, a subcooler, etc. in addition to a condenser. As a cooling heat exchanger on the vehicle side, engine oil or ATF (automatic transmission fluid) is used. There is an oil cooler to cool.

  Therefore, the inventor examined a cooling heat exchanger module in which the oil cooler 5, the condenser 2, the subcooler 3, and the modulator 4 are integrated as shown in FIG. It was difficult to secure the volume of the modulator 4.

  In addition, when the volume of the modulator is insufficient, it becomes impossible to sufficiently separate the gas-phase refrigerant and the liquid-phase refrigerant, the capacity of the vapor compression refrigerator is reduced, and the excess refrigerant can be sufficiently stored. It may not be possible to absorb the load fluctuation.

  In view of the above, the present invention firstly provides a novel cooling heat exchanger module different from the conventional one, and secondly, without expanding the maximum external dimensions of the cooling heat exchanger module, The purpose is to increase the volume of the modulator.

In order to achieve the above object, according to the present invention, in the invention described in claim 1, the condenser (2) for condensing the refrigerant, the subcooler (3) for cooling the liquid-phase refrigerant, and the condenser (2) flowed out. A modulator (4) for separating the refrigerant into a gas-phase refrigerant and a liquid-phase refrigerant and supplying the liquid-phase refrigerant to the subcooler (3); and a heat exchanger (5) for cooling a fluid different from the refrigerant, (2) The subcooler (3) and the heat exchanger (5) are arranged in a direction orthogonal to the flow direction of the cooling air so as to be parallel to the flow of the cooling air, and the modulator (4) , The condenser (2), the subcooler (3), and the heat exchanger (5) are extended in a direction parallel to the direction (D) of the arrangement, and the longitudinal dimension (Ho) thereof is the same as the direction (D) of the arrangement. Dimensions of capacitor (2) in parallel direction The dimension (H1) of the capacitor (2) and the dimension (H2) of the capacitor (2) in a direction that is longer than the sum of the dimension (H1) and the dimension (H2) of the subcooler (3) and parallel to the direction (D) of arrangement. ) and Ri der less the sum of the dimension (H3) of the heat exchanger (5), the heat exchanger (5) and connects the outer pipe inlet side connecting pipe portion (5b) is, the heat exchanger (5) It is characterized by being provided on the opposite side of the modulator (4) .

  By the way, the maximum height dimension of the cooling heat exchanger module is the sum of the height dimension of the condenser (2), the height dimension of the subcooler (3), and the height dimension of the heat exchanger (5). The large dimension is the sum of the width method of the heat exchanger such as the condenser (2) and the width dimension of the modulator (4).

  At this time, if the width of the modulator (4) is increased to increase the volume of the modulator (4), the maximum width of the cooling heat exchanger module is increased and the maximum outer dimension of the cooling heat exchanger module is increased. However, as in the present invention, the longitudinal dimension (Ho) of the modulator (4) is the same as the dimension (H1) of the capacitor (2) and the subcooler (3) in the direction parallel to the direction of alignment (D). The dimension (H1) of the condenser (2), the dimension (H2) of the subcooler (3), and the heat exchanger (5) in a direction parallel to the direction (D) of arrangement and longer than the sum of the dimension (H2) of If the volume of the modulator (4) is expanded below the sum of the dimensions (H3), the volume of the modulator (4) is expanded while preventing the maximum external dimensions of the cooling heat exchanger module from expanding. Do Door can be.

  Incidentally, in the examined product shown in FIG. 5, the dimension (Ho) of the modulator (4) is smaller than the sum of the dimension (H1) of the capacitor (2) and the dimension (H2) of the subcooler (3).

  The invention according to claim 2 is characterized in that the condenser (2), the subcooler (3), and the heat exchanger (5) are arranged in the vertical direction.

In the invention according to claim 3 , the condenser (2), the subcooler (3), and the heat exchanger (5) are arranged in the order of the heat exchanger (5), the condenser (2), and the subcooler (3) from the upper side. Furthermore, the modulator (4) extends in the vertical direction, and its upper end side reaches a portion corresponding to the heat exchanger (5).

  Thereby, the volume of the modulator (4) can be increased while preventing the maximum width dimension of the cooling heat exchanger module from increasing.

  The invention according to claim 4 is characterized in that the connection pipe portion (5c) connecting the heat exchanger (5) and the external pipe extends in a direction substantially parallel to the flow direction of the cooling air.

  Thereby, since it can prevent that a connection pipe (5c) and a modulator (4) interfere, the volume of a modulator (4) can further be expanded.

  In the invention according to claim 5, the inlet-side connecting pipe portion (5b) and the outlet-side connecting pipe portion (5c) connecting the heat exchanger (5) and the external piping are arranged with the heat exchanger (5) interposed therebetween. It is provided on the opposite side to (4).

  Thereby, since it can prevent that a connection pipe (5c) and a modulator (4) interfere, the volume of a modulator (4) can further be expanded.

  In the invention described in claim 6, the condenser (2), the subcooler (3) and the heat exchanger (5) are integrated.

  In the invention described in claim 7, the heat exchanger (5) is an oil cooler for cooling oil.

  Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.

(First embodiment)
In this embodiment, the cooling heat exchanger module according to the present invention is applied to a cooling device for a vehicle. FIG. 1 shows the cooling heat exchanger module according to this embodiment as viewed from the downstream side of the cooling air flow. FIG. 2 is a diagram showing a vehicle-mounted state of the cooling heat exchanger module according to the present embodiment.

  As shown in FIG. 1, the cooling heat exchanger module 1 according to this embodiment includes a vehicular vapor compression refrigerator, that is, a condenser 2, a subcooler 3 and a modulator 4 of a vehicle air conditioner, engine oil, An oil cooler 5 for cooling ATF (automatic transmission fluid) is integrated.

  The condenser 2, the subcooler 3 and the oil cooler 5 are arranged in order from the upper side in the vertical direction perpendicular to the flow direction of the cooling air so as to be parallel to the flow of the cooling air. The modulator 4 is arranged in the horizontal direction one end side of the heat exchange core portion 6 including the condenser 2, the sub cooler 3, and the oil cooler 5, and the direction of the condenser 2, the sub cooler 3, and the oil cooler 5, that is, the vertical direction. It extends to D.

  The condenser 2 is a high-pressure side heat exchanger that cools and condenses high-temperature and high-pressure refrigerant discharged from a compressor (not shown) of a vapor compression refrigerator, and the subcooler 3 is a liquid condensed by the condenser 2. The supercooler further increases the degree of supercooling of the refrigerant by further cooling the phase refrigerant, and the modulator 4 separates the refrigerant flowing out of the capacitor 2 into a gas-phase refrigerant and a liquid-phase refrigerant and converts the liquid-phase refrigerant into the subcooler 3. And a liquid receiver for storing excess refrigerant as liquid refrigerant.

  Incidentally, in addition to the compressor, the condenser 2, the modulator 4, and the subcooler 3, the vapor compression refrigerator has a decompressor that decompresses the high-pressure liquid refrigerant flowing out from the subcooler 3, and a decompressed low-pressure refrigerant. It is composed of an evaporator that evaporates and absorbs heat.

  The condenser 2 and the subcooler 3 are composed of a plurality of tubes (not shown) through which a refrigerant flows, header tanks 2a, 3a, etc. communicating with the plurality of tubes on both ends in the longitudinal direction of the tubes, The longitudinal direction of the tube coincides with the horizontal direction, and the longitudinal direction of the header tanks 2a and 3a coincides with the vertical direction.

  The oil cooler 5 has the same structure as the condenser 2 and the subcooler 3, and includes a tube (not shown) through which oil flows, a header tank 5a communicating with a plurality of tubes at both ends in the longitudinal direction of the tubes, and the like. The longitudinal direction of the tube coincides with the horizontal direction, and the longitudinal direction of the header tank 5a coincides with the vertical direction.

  And in this embodiment, the header tank 2a of the capacitor | condenser 2, the header tank 3a of the subcooler 3, and the header tank 5a of the oil cooler 5 are the cylindrical shapes extended continuously from the upper end side of the oil cooler 5 to the lower end side of the subcooler 3. The space in the tank body is divided by a partition plate such as a separator.

  That is, in this embodiment, the oil cooler 5, the condenser 2, and the sub cooler 3 are integrated by a cylindrical tank body that continuously extends from the upper end side of the oil cooler 5 to the lower end side of the sub cooler 3. The tube, the tank body and the separator are integrally joined by brazing.

  Incidentally, “brazing” refers to a technique for joining so as not to melt the base material using brazing material or solder, as described in “Connection / Joint Technology” (Tokyo Denki University Press). .

  And when joining using the filler material whose melting | fusing point is 450 degreeC or more is called brazing, the welding material in that case is called brazing material, and when joining using the filler material whose melting | fusing point is 450 degrees C or less Is called soldering, and the filler material at that time is called solder.

  Moreover, the modulator 4 is comprised from the cylindrical tank part extended in an up-down direction, the cover part etc. which block | close the upper and lower ends. The tank portion, that is, the lower end side of the modulator 4 is provided with a liquid-phase refrigerant outlet through which the separated liquid-phase refrigerant flows out using the density difference between the gas-phase refrigerant and the liquid-phase refrigerant. The liquid-phase refrigerant outlet is connected to the refrigerant inlet side of the subcooler 3.

  In addition, a refrigerant inlet through which the refrigerant that has flowed out of the capacitor 2 flows is provided above the modulator 4 above the liquid-phase refrigerant outlet. In the present embodiment, the tank portion of the modulator 4 is brazed while being in close contact with the capacitor 2 and the header tanks 2a and 3a of the subcooler 3, but the present embodiment is not limited to this. In a state where a space for heat insulation is provided between the header tank 2 a of the capacitor 2 and the modulator 4, the header tanks 2 a and 3 a of the capacitor 2 and the subcooler 3 and the modulator 4 may be integrated.

  In addition, the modulator 4 according to the present embodiment is located at the lower end side of the subcooler 3, that is, at the same height as the lower end of the heat exchange core part 6 or higher than the lower end of the heat exchange core part 6, The upper end side reaches a portion corresponding to the oil cooler 5.

  For this reason, the longitudinal dimension, that is, the height dimension Ho of the modulator 4 is the sum of the dimension of the capacitor 2 and the dimension of the subcooler 3 in the direction parallel to the direction D of arrangement, that is, the height dimension H1 of the capacitor 2 and the subcooler 3. Longer than the sum of the height dimension H2 and the sum of the dimension of the capacitor 2, the dimension of the subcooler 3 and the dimension of the oil cooler 5 in the direction parallel to the direction D of the arrangement, that is, the height dimension H1 of the capacitor 2 It is less than or equal to the sum of the height dimension H2 of the sub-cooler 3 and the height dimension H3 of the oil cooler 5.

  That is, the height dimension H1 of the capacitor 2, the height dimension H2 of the subcooler 3, the height dimension H3 of the oil cooler 5, and the height dimension Ho of the modulator 4 have a relationship of H1 + H2 <Ho <H1 + H2 + H3.

  The connection pipe 5b connects an oil inlet of the oil cooler 5 and an external pipe (not shown), and the connection pipe 5c is an oil outlet of the oil cooler 5 and an external pipe (not shown). In this embodiment, oil flows into the oil cooler 5 from the left side of the paper and flows out of the oil cooler 5 from the right side of the paper.

  The connection pipe 2b connects the refrigerant inlet of the condenser 2 and external piping (not shown), and the connection pipe 3b connects the refrigerant outlet of the subcooler 3 and external piping (not shown). is there.

  In the present embodiment, the refrigerant discharged from the compressor and flowing into the condenser 2 flows in the order of the condenser 2 → the modulator 4 → the subcooler 3 and flows into the decompressor.

  Incidentally, on the downstream side of the air flow of the cooling heat exchanger module 1, as shown in FIG. 2, the radiator 7, the radiator 7 and the cooling heat for exchanging heat between the engine cooling water and the air to cool the engine cooling water. A blower 8 or the like for blowing cooling air is mounted on the exchanger module 1.

  Next, the function and effect of this embodiment will be described.

  In the present embodiment, the height dimension Ho of the modulator 4 is longer than the sum of the height dimension H1 of the capacitor 2 and the height dimension H2 of the subcooler 3, and the height dimension H1 of the capacitor 2 and the height of the subcooler 3 are set. Since the upper end side is extended to a portion corresponding to the oil cooler 5 as less than the sum of the dimension H2 and the height dimension H3 of the oil cooler 5, without increasing the width dimension of the modulator 4, that is, the horizontal dimension, The volume of the modulator 4 can be increased.

  By the way, the external dimensions of the cooling heat exchanger module, that is, the space necessary for mounting the cooling heat exchanger module, is a hexahedral space determined by the maximum external dimensions of the cooling heat exchanger module.

  At this time, the maximum height dimension of the cooling heat exchanger module is the sum of the height dimension H1 of the condenser 2, the height dimension H2 of the subcooler 3, and the height dimension H3 of the oil cooler 5, and the maximum width dimension is , The sum of the width method W 1 of the capacitor 2 and the width dimension Wo of the modulator 4. In this embodiment, the width method W1 of the capacitor 2, the width dimension W2 of the sub-cooler 3, and the width dimension W3 of the oil cooler 5 are all equal.

  At this time, if the width dimension Wo of the modulator 4 is increased to increase the volume of the modulator 4, the maximum width dimension of the cooling heat exchanger module is increased and the maximum outer dimension of the cooling heat exchanger module is increased. However, as in this embodiment, if the height dimension Ho of the modulator 4 is increased to a portion where the upper end side of the modulator 4 corresponds to the oil cooler 5, and the volume of the modulator 4 is increased, the maximum heat exchanger module for cooling can be obtained. The volume of the modulator 4 can be increased while preventing the outer dimensions from expanding.

  Incidentally, in the examined product shown in FIG. 5, the upper end side of the modulator 4 does not reach the portion corresponding to the oil cooler 5, and the height dimension Ho of the modulator 4 is equal to the height dimension H1 of the capacitor 2 and the height of the subcooler 3. It is smaller than the sum of the dimension H2.

(Second Embodiment)
In the first embodiment, since it is necessary to avoid interference between the connection pipe 5c and the modulator 4, the height dimension Ho of the modulator 4 is set to the height dimension H1 of the capacitor 2, the height dimension H2 of the subcooler 3, and the oil cooler 5. Cannot be enlarged to the same as the sum of the height dimension H3.

  Therefore, in the present embodiment, as shown in FIG. 3, the connection pipe 5c is projected so as to extend in a direction substantially parallel to the flow direction of the cooling air, so that the connection pipe 5c and the modulator 4 do not interfere with each other. Yes.

  As a result, the height dimension Ho of the modulator 4 can be expanded to be equal to the sum of the height dimension H1 of the capacitor 2, the height dimension H2 of the subcooler 3, and the height dimension H3 of the oil cooler 5. It is possible to further increase the volume of the modulator 4 while preventing the maximum outer dimension of the heat exchanger module from being increased.

(Third embodiment)
In the second embodiment, the connection pipe 5c is protruded in a direction substantially parallel to the flow direction of the cooling air to prevent interference between the connection pipe 5c and the modulator 4. However, in the present embodiment, as shown in FIG. By providing the connection pipe portion 5b on the inlet side and the connection pipe portion 5c on the outlet side on both sides of the oil cooler 5 on the opposite side (left side of the paper), interference between the connection pipe 5c and the modulator 4 is prevented. Is.

  Thereby, also in this embodiment, the height dimension Ho of the modulator 4 is set to the height dimension H1 of the capacitor 2, the height dimension H2 of the subcooler 3, and the height dimension of the oil cooler 5 as in the second embodiment. Since it can be expanded to be equal to the sum of H3, the volume of the modulator 4 can be further increased while preventing the maximum external dimension of the cooling heat exchanger module from being increased.

  In the present embodiment, since the connection pipe portions 5b and 5c are provided on the opposite side to the modulator 4, the protruding direction may be any direction.

(Other embodiments)
In the above-described embodiment, the condenser 2, the sub cooler 3, and the oil cooler 5 are arranged in the order of the oil cooler 5, the condenser 2, and the sub cooler 3 from the upper side. However, the present invention is not limited to this, and the upper For example, the condenser 2, the oil cooler 5, and the subcooler 3 may be arranged in this order from the side.

  Moreover, in the above-mentioned embodiment, although the capacitor | condenser 2, the subcooler 3, and the oil cooler 5 were located in the up-down direction, this invention is not limited to this.

  Moreover, in the above-mentioned embodiment, although the space in the cylindrical tank main body extended continuously from the upper end side of the oil cooler 5 to the lower end side of the subcooler 3 was partitioned, each header tank 5a, 2a, 3b was comprised. For example, two separators may be provided and a space for heat insulation may be provided between the separators.

  Moreover, you may insulate between different heat exchangers, for example by arrange | positioning the dummy tube which does not flow a fluid between the oil cooler 5 and the capacitor | condenser 2. FIG.

  In the above-described embodiment, the condenser 2, the subcooler 3, the modulator 4, and the oil cooler 5 are integrated. However, the present invention is not limited to this, and a heat exchanger other than the oil cooler 5 (for example, an intercooler). The cooler), the capacitor 2, the subcooler 3, and the modulator 4 may be integrated.

  The intercooler is a heat exchanger that cools the intake air pressurized by the supercharger.

  In the above-described embodiment, the condenser 2, the sub cooler 3, and the oil cooler 5 are integrated. However, the present invention is not limited to this, and the condenser 2, the sub cooler 3, and the oil cooler 5 May be assembled and fixed to the vehicle so as to be aligned in a direction perpendicular to the flow direction of the cooling air so as to be parallel to the vehicle.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

It is a front view of the heat exchanger module for cooling concerning a 1st embodiment of the present invention. It is a figure which shows the vehicle mounting state of the heat exchanger module for cooling which concerns on 2nd Embodiment of this invention. It is a front view of the heat exchanger module for cooling concerning a 2nd embodiment of the present invention. It is a front view of the heat exchanger module for cooling concerning a 5th embodiment of the present invention. It is a front view of the heat exchanger module for cooling concerning trial manufacture examination.

Explanation of symbols

1 ... Heat exchanger module for cooling, 2 ... Condenser,
3 ... sub cooler, 4 ... modulator, 5 ... oil cooler.

Claims (7)

A condenser (2) for condensing the refrigerant;
A subcooler (3) for cooling the liquid-phase refrigerant;
A modulator (4) for separating the refrigerant flowing out of the capacitor (2) into a gas-phase refrigerant and a liquid-phase refrigerant and supplying the liquid-phase refrigerant to the subcooler (3);
A heat exchanger (5) for cooling a fluid different from the refrigerant,
The condenser (2), the subcooler (3), and the heat exchanger (5) are arranged in a direction orthogonal to the flow direction of the cooling air so as to be in parallel with the flow of the cooling air,
Further, the modulator (4) extends in a direction parallel to the direction (D) in which the condenser (2), the subcooler (3), and the heat exchanger (5) are arranged, and its longitudinal dimension ( Ho) is longer than the sum of the dimension (H1) of the capacitor (2) and the dimension (H2) of the sub-cooler (3) in a direction parallel to the alignment direction (D), and the alignment direction ( der sum following the dimension (H3) of the dimension (H2) and the heat exchanger (5) of dimensions of the capacitor (2) in the direction parallel to the D) (H1) and the sub-cooler (3) is,
An inlet side connecting pipe portion (5b) connecting the heat exchanger (5) and external piping is provided on the opposite side of the modulator (4) with the heat exchanger (5) interposed therebetween. Heat exchanger module for cooling. The cooling heat exchanger module according to claim 1, wherein the condenser (2), the sub-cooler (3), and the heat exchanger (5) are arranged in a vertical direction. The condenser (2), the subcooler (3), and the heat exchanger (5) are arranged in the order of the heat exchanger (5), the condenser (2), and the subcooler (3) from above.
Furthermore, the said modulator (4) is extended in the up-down direction, The upper end side has reached | attained the site | part corresponding to the said heat exchanger (5), The cooling of Claim 1 characterized by the above-mentioned. Heat exchanger module. The connection pipe part (5c) which connects the said heat exchanger (5) and external piping is extended in the direction substantially parallel to the distribution direction of cooling air, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The heat exchanger module for cooling as described in 2. The inlet-side connecting pipe part (5b) and the outlet-side connecting pipe part (5c) connecting the heat exchanger (5) and the external pipe are opposite to the modulator (4) across the heat exchanger (5). The cooling heat exchanger module according to claim 1, wherein the cooling heat exchanger module is provided in the cooling heat exchanger module. The cooling heat exchanger module according to any one of claims 1 to 5, wherein the condenser (2), the subcooler (3), and the heat exchanger (5) are integrated. . The heat exchanger module for cooling according to any one of claims 1 to 6, wherein the heat exchanger (5) is an oil cooler for cooling oil.

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